Mimitsu surfForecast / Kyu Shu / Japan

information circle12 Day Weather and Surf, issued 8 am Saturday 20 Dec 2025 JST
Forecast update in hr  min  s Forecast update imminent
Mimitsu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mimitsu sea temperature is
20.0° C
(Which is 1.0°C colder than average for this time of year)


Best Forecast Surf Conditions for Mimitsu this week:

The surf forecast for Mimitsu over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 21) at 9AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.4m and 3s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mimitsu in the next 12 days are 2.5m 10s and forecast to arrive on Wednesday (Dec 24) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Monday (Dec 22) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Sun 21st Dec)3.5ft (1.0m) 8s
Best Surf 6AM (Wed 24th Dec)8ft (2.5m) 10s
Most Powerful 9AM (Wed 24th Dec)8ft (2.5m) 10s

Table - best surf conditions forecast for Mimitsu over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 10mm), heaviest on Sat afternoon. Very mild (max 18°C on Sat morning, min 7°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Thu afternoon. Very mild (max 19°C on Wed afternoon, min 5°C on Thu night). Wind will be generally light.

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
1
0
0
1
1
1
3
3
3
4
3
3
2
2
1
1
1
0
Swell
Height Map
Wave Height (m) & direction (?)
0.4
SE
0.4
ESE
1
E
1
ESE
1.1
ESE
0.9
ESE
1.1
ESE
1.2
ESE
1.3
ESE
1.4
E
1.6
E
2
E
2.5
ESE
2.3
ESE
2
ESE
1.5
ESE
1.2
ESE
0.9
ESE
0.7
ESE
0.6
ESE
0.3
ENE
Period(s) (?)109888999991110101099999816
Wave
Graph
(?)Metric surfscale
Energy kJ (?)25281331511601161992312663185668081270990644346227119674647
Wind
(km/h)
5
NW
5
S
15
SW
5
W
15
NNE
25
N
20
N
20
NNE
15
N
10
N
10
NE
5
N
5
WSW
5
WSW
0
NNW
5
NNW
15
NW
15
NW
15
NNW
15
N
20
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crossglasscross-
off
glassglasscross-
off
offoffoffcross-
off
cross-
off
High Tide
/ height (m)
5:51PM
1.77
7:48AM
1.69
6:31PM
1.76
8:28AM
1.68
7:11PM
1.73
9:08AM
1.66
7:54PM
1.68
9:48AM
1.62
8:42PM
1.60
10:29AM
1.58
9:36PM
1.50
11:12AM
1.55
10:40PM
1.39
Low Tide
/ height (m)
12:23PM
0.93
12:52AM
-0.10
1:04PM
0.93
1:31AM
-0.09
1:45PM
0.93
2:11AM
-0.04
2:29PM
0.92
2:52AM
0.05
3:15PM
0.90
3:35AM
0.17
4:08PM
0.86
4:20AM
0.31
5:07PM
0.81
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Sunrise7:09--7:09--7:09--7:11--7:11--7:11--7:11--
Sunset-5:10--5:12--5:12--5:13--5:13--5:14--5:14-
light rain
light rain
light rain
rain showers
rain showers
clear
clear
clear
clear
cloud
cloud
cloud
rain showers
part cloud
rain showers
light rain
light rain
clear
clear
part cloud
part cloud
Rain (mm)
12331-------2-212----
Temp. °C18181618161312139141314161916161599115
Feels °C (?)191816171487761211141619161611335-2
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Mimitsu Surf forecast

The above surf forecast table for Mimitsu provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Mimitsu can be found by selecting the local surf guide option on the grey menu. Our Mimitsu surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Mimitsu) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Mimitsu may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Mimitsu is 25 km (16 miles) from the city of Takanabe. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Takanabe. Takanabe has rooms for a wide range of budgets as well as car hire and transport links.

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